Pivot tables and many-to-many relationships - Laravel Daily. Today I want to talk about a feature of Laravel which is really useful but can be potentially difficult to understand at first.
Pivot table is an example of intermediate table with relationships between two other “main” tables. Real-life example of pivot tables In official documentation they show the example of User-Role relationships, where user potentially can belong to several roles, and vice versa. So to make things clearer – let’s take another real-life example: Shops and Products. Let’s say a company has a dozen of Shops all over city/country and a variety of products, and they want to store the information about which Product is sold in which Shop. Many-to-many relationship. In a many-to-many relationship, one or more rows in a table can be related to 0, 1 or many rows in another table.
In a many-to-many relationship between Table A and Table B, each row in Table A is linked to 0, 1 or many rows in Table B and vice versa. A 3rd table called a mapping table is required in order to implement such a relationship. Database design - Should I use a separate table to store image file names? - Database Administrators Stack Exchange. In general, if files are not supposed to be directly accessible by a URL (even with web server level redirects), put the files in a database.
For example, you might run a scholarly journal and charge money for important articles. In this case, you do not want to store a URL because your product could be ripped off. For images, there are times where simply storing the URL might be better. Database Lesson #4 of 8 - Data Modeling and the ER Model. The meaning of all the different meta tags & how to use them. <title>relevant and attractive phrase </title> The title is the first (usually click-able) phrase you see as a search result.
Click here for more information >> <meta name="description" content="text"> A description of your website in 3 of 4 sentences. Extreme Ultradev - E-Commmerce Database Design Part II. Rick Curtis E-commerce Database Design - Part II This is the second installment in an explanation of Database Design for Ultradev E-commerce application developers.
It's based on my database experience (and all the mistakes I made along the way) with building E-commerce apps in Drumbeat 2000. I hope it's helpful Defining the Product Table. Relational Database Design Patterns? Industry Data Models. Google Developers. Add markup to your product pages so Google can provide detailed product information in rich Search results — including Image Search.
Users can see price, availability, and review ratings right on Search results. Using markup to enable rich product results lets you attract potential buyers while they are searching for items to buy on Google or images that include products you sell. Maintain the accuracy and freshness of your product information, so your customers find the relevant, current items they're looking for. Product. Canonical URL: Thing > Product Any offered product or service.
How to design database, one table for all product type or each table for each product type? Designing database to hold different metadata information.